Abstract:
It is shown that a large class of solutions in two-degree-of-freedom Hamiltonian systems of billiard type can be described by slowly varying one-degree-of-freedom Hamiltonian systems. Under some non-degeneracy conditions such systems are found to possess a large set of quasiperiodic solutions filling out two dimensional tori, which correspond to caustics in the classical billiard. This provides a unified proof of existence of quasiperiodic solutions in convex billiards and other systems with impacts including classical billiard in electric and magnetic fields, dual billiard, and Fermi–Ulam systems.
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Received: 8 September 1999 / Accepted: 16 November 1999
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Zharnitsky, V. Invariant Tori in Hamiltonian Systems with Impacts. Comm Math Phys 211, 289–302 (2000). https://doi.org/10.1007/s002200050813
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DOI: https://doi.org/10.1007/s002200050813